IMC Chicago’s Ambarella AMBA Stock Holding History

IMC Chicago’s Portfolio AMBA Stock Details AMBA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.32M	Sell	25,608 -18,749	-42%	-$1.17M	﹤0.01%	2991
2025 Q4	$3.14M	Buy	44,357 +17,129	+63%	+$1.38M	﹤0.01%	2071
2025 Q3	$2.25M	Buy	+27,228	New	+$1.98M	﹤0.01%	2137
2025 Q2	–	Sell	-10,046	Closed	-$533K	–	3276
2025 Q1	$506K	Buy	+10,046	New	+$688K	﹤0.01%	2644
2024 Q3	–	Sell	-15,192	Closed	-$808K	–	2758
2024 Q2	$820K	Buy	+15,192	New	+$755K	﹤0.01%	2067
2023 Q4	–	Sell	-13,438	Closed	-$734K	–	1801
2023 Q3	$713K	Buy	+13,438	New	+$944K	﹤0.01%	1333
2021 Q1	–	Sell	-18,393	Closed	-$2M	–	1033
2020 Q4	$1.69M	Buy	+18,393	New	+$1.29M	﹤0.01%	763
2019 Q1	–	Sell	-6,318	Closed	-$250K	–	629
2018 Q4	$221K	Buy	+6,318	New	+$224K	﹤0.01%	813

Other funds holding AMBA

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return

IMC Chicago's AMBA Position: Q1 2026 in Review

IMC Chicago reduced its Ambarella (AMBA) stake by 42% in Q1 2026, selling an estimated $1.17M and leaving 25,608 shares worth $1.32M. The position accounts for ﹤0.01% of the portfolio, ranked #2991.

IMC Chicago first reported a position in AMBA in Q4 2018 and has held it in 8 quarters since. The position peaked at $3.14M in Q4 2025. 305 funds tracked by Wall St. Rank hold AMBA as of Q1 2026.

IMC Chicago held 25,608 shares of Ambarella worth $1.32M as of Q1 2026.
IMC Chicago sold 18,749 Ambarella shares in Q1 2026, an estimated $1.17M.
Ambarella made up ﹤0.01% of IMC Chicago's portfolio in Q1 2026, its #2991 holding.
IMC Chicago first reported a position in Ambarella in Q4 2018 and has held it in 8 quarters since.
IMC Chicago's Ambarella position peaked at $3.14M in Q4 2025.
305 funds tracked by Wall St. Rank held Ambarella as of Q1 2026.

Based on IMC Chicago's 13F filing for Q1 2026, filed 5 May 2026.